Viewing the Details of the Prefix Group Used for Routing

The ARM helps you determine what Prefix Group is used for routing. As deployment of the ARM has expanded, customer-managed dialing plans have grown more and more extensive (many Prefix Groups are being used in hundreds of Routing Rules and Policy Studio definitions). Sometimes, it’s difficult to understand why a specific Routing Rule was selected by the ARM for Call Routing and where a specific Prefix Group is being used.

For this reason, in addition to the Exact Match DID search described in Validating Prefix or DID Uniqueness, the ARM gives operators a detailed description of the selected Prefix Group used in ARM routing. It covers both Policy Studio (pre-routing mechanism) and Routing Groups/Routing Rules.

When a Prefix Group is selected, its summary is displayed on the right side of the page:

If the selected Prefix Group is not used in Policy Studio, Policy Studio will be indicated as ‘None’. The same applies to Routing Groups. If a Prefix Group is used in multiple Routing Groups, all of them will be listed.